# coding=utf8


class NoRowKeyException(Exception):
    def __init__(self, value):
        self.value = value

    def __str__(self):
        return self.value


class RowExistException(Exception):
    def __init__(self, value):
        self.value = value

    def __str__(self):
        return self.value


class RowIsNotExistException(Exception):
    def __init__(self, value):
        self.value = value

    def __str__(self):
        return self.value


class RowOutSideException(Exception):
    def __init__(self, value):
        self.value = value

    def __str__(self):
        return self.value
